CN116079007A - Casting die for automobile exhaust connector and manufacturing process - Google Patents
Casting die for automobile exhaust connector and manufacturing process Download PDFInfo
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- CN116079007A CN116079007A CN202310366878.6A CN202310366878A CN116079007A CN 116079007 A CN116079007 A CN 116079007A CN 202310366878 A CN202310366878 A CN 202310366878A CN 116079007 A CN116079007 A CN 116079007A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
- B22C9/04—Use of lost patterns
Abstract
The invention discloses a casting mould for an automobile exhaust joint and a manufacturing process, the casting mould comprises a molding sand box, a joint casting profiling module is fixedly connected inside the molding sand box, the joint casting profiling module comprises four outer vertical plates, four inner vertical plates and a chassis, the four outer vertical plates distributed in a ring shape and the four inner vertical plates distributed in a staggered manner form a casting molding cavity between the inner vertical plates inside the outer vertical plates.
Description
Technical Field
The invention relates to the technical field of automobile fitting casting, in particular to a casting die for an automobile exhaust joint and a manufacturing process.
Background
The automobile exhaust connector is a connecting piece of an automobile exhaust pipe, the automobile exhaust connector is cast and molded in a sand casting mode, sand is filled in a sand box to provide a casting molding device for casting of the automobile exhaust connector, profiling foam of an automobile exhaust connector pattern is inserted into and buried in the sand, the top end of the profiling foam is exposed in a molten iron casting groove on the top layer of the sand, molten iron is poured in from the molten iron casting groove, the profiling foam is gradually dissolved to enable molten iron to fill a casting molding cavity, an automobile exhaust connector casting is formed after cooling, molten iron is poured into the casting molding cavity from different positions from the molten iron casting groove, part of the sand at the cavity wall position of the casting molding cavity is flushed down, part of the sand and dissolved profiling foam can be mixed into the interior of the molten iron, part of the sand can be mixed into other areas of the cavity wall of the casting molding cavity, the casting formed by cooling of the molten iron can not be shaped to enable the casting molding cavity to be in a shrinkage cavity and an outer ring to be abnormal condition, and simultaneously, the surface sand and the filling of the casting molding cavity area can be formed in the casting cavity when the casting is taken, the casting cavity is not lost, and the continuous casting of the casting cavity is not conveniently arranged in the specified mode of the sand box, and the casting cavity is not convenient to be set up in the casting mode of the casting cavity is arranged at the casting cavity.
Disclosure of Invention
The invention aims to provide a casting die and a manufacturing process for an automobile exhaust connector, which are used for solving the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the casting die for the automobile exhaust connector comprises a molding sand box, wherein a connector casting profiling module is fixedly connected inside the molding sand box, the connector casting profiling module comprises four outer vertical plates, four inner vertical plates and a chassis, the four outer vertical plates distributed in an annular mode and the four inner vertical plates distributed on the inner side of the outer vertical plates in an annular staggered mode form a casting forming cavity, a casting material module is rotationally connected above the connector casting profiling module, the casting material module comprises an outer vertical shell, an inner vertical shell and a plugging tray, the inner vertical shell is fixedly connected on the inner side of the outer vertical shell, the outer vertical shell is rotationally connected to the top end of the outer vertical plate, a casting cavity is formed between the inner side wall of the outer vertical shell and the outer side wall of the inner vertical shell, and the plugging tray is in clamping connection inside the casting cavity; the casting forming die cavity is internally connected with a scraping shaping module in a sliding manner, the scraping shaping module comprises a storage shell and a leveling guide seat, the leveling guide seat is fixedly connected to the bottom of the storage shell, the storage shell is slidingly connected to the inside of the casting forming die cavity, the plugging tray is connected with the storage shell in a clamping manner, the material injection module is fixedly connected to the upper part of the casting module, the material injection module comprises a material injection shell and four material injection pipes, the four material injection pipes are fixedly connected in an annular manner and are arranged on the inner side of the inner vertical shell, the material injection shell is positioned above the inner vertical shell, and the input end of the material injection pipe is fixedly connected to the bottom of the material injection shell.
Further: the molding sand box is characterized in that a plugging disc is arranged at the center of the bottom of the molding sand box, a fixing seat is fixedly connected to the bottom of the molding sand box, and the plugging disc is fixedly connected to the top end of the fixing seat.
Further: four outer risers are annular equidistance fixed connection be in the chassis top, chassis fixed connection is in molding sand box bottom inner wall, outer riser is located the shutoff dish outside, four the chassis is annular equidistance fixed connection be in the shutoff dish top.
Further: the top of the outer vertical shell is fixedly connected with a composition board, the top of the inner vertical shell is fixedly connected with the bottom of the composition board, two symmetrically distributed connecting plates are fixedly connected with the bottom of the outer vertical shell outer side wall, one connecting plate corresponds to the top of the outer vertical plate below and is rotationally connected, and the other connecting plate corresponds to the bottom below and is connected with the top of the outer vertical plate in a clamping mode.
Further: the storage shell is characterized in that two symmetrically distributed side plates are fixedly connected to the inner side wall of the storage shell, a vertical rod is fixedly connected to the top of each side plate, the vertical rod is slidably connected to the inside of the inner vertical shell, and the top end of each vertical rod extends to the upper portion of the inner vertical shell.
Further: the positioning groove is formed in the outer side wall of the storage shell, the bottom of the chassis is fixedly connected with the positioning block, and the end, close to the storage shell, of the positioning block is clamped in the positioning groove.
Further: the injection pipe outside is equipped with fixed knot, injection pipe fixed connection is in fixed knot is inside, fixed knot outer wall with interior perpendicular shell inside wall fixed connection.
Further: the invention also relates to a manufacturing process of the casting mould for the automobile exhaust joint, which comprises the following steps:
s1, filling molding sand into the molding sand box, wrapping the outer vertical plates and the inner vertical plates by face sand, filling the molding sand into the residual space in the molding sand box, rotating the casting module anticlockwise and upwards, placing profiling foam into the casting molding cavity, rotating the casting module clockwise and downwards, clamping the connecting plate at the free side to the top end of the lower corresponding outer vertical plate, and placing the casting module above the molding sand box;
s2, the storage shell is positioned above profiling foam, molten iron is injected into the storage shell, molten iron is guided by four injection pipes to flow into the storage shell, the weight of the storage shell is increased and moves vertically downwards in the casting forming cavity, the profiling foam is dissolved, and the side edge of the storage shell contacts with surface sand on the side edge of the casting forming cavity to realize the shaping of the surface sand on the side edge of the casting forming cavity;
s3, casting molten iron is injected into the pouring cavity, the plugging tray supports the casting molten iron to descend in the casting forming cavity, the casting molten iron fills the inner space of the casting forming cavity, and the casting of the automobile exhaust joint is completed through cooling.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the joint casting profiling module connected in the molding sand box is arranged for placing profiling foam, the casting module rotationally connected above the joint casting profiling module can be clamped and positioned right above the joint casting profiling module, the effects of setting the profiling foam and injecting molten iron at fixed points in a designated area below a molten iron injection structure above the molding sand box are achieved, molten iron can be injected into the storage shell between the casting module and the profiling foam through the injection shell above the inner vertical shell and the four injection pipes, the weight of the storage shell is increased and the casting molding cavity formed between the outer vertical plate and the inner vertical plate vertically moves downwards, the profiling foam is dissolved, the side edge of the storage shell contacts with surface sand on the side edge of the casting molding cavity to move downwards, the effect of heating and shaping the surface sand on the side edge of the casting molding cavity is achieved, the subsequent molten iron can smoothly enter the complete casting molding cavity, an operator can conveniently take a part from above by opening and closing the casting module, the damage to the casting molding cavity can be reduced, and the continuous casting joint of an automobile can be carried out by adopting a casting mode.
2. According to the invention, the casting material module arranged on the outer side of the casting material shell is used for injecting part of molten iron into the casting material cavity, the molten iron is injected into the casting material cavity, the plugging tray supports molten iron to descend in the casting material cavity, so that the molten iron gradually fills the inner space of the casting material cavity from different areas, after the molten iron is split, the preheated and shaped inner space of the casting material cavity is gradually filled from different areas of the casting material cavity through the support of the plugging tray, the effect of reducing the part of molding sand at the cavity wall position of the casting material cavity from being flushed by the molten iron can be achieved, the effect of reducing the mixture of part of molding sand and dissolved profiling foam into the molten iron and into other areas of the cavity wall of the casting material cavity can be achieved, and the conditions of shrinkage porosity and outer ring abnormality of the casting material are reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments, the drawings in the embodiments will be briefly described below.
FIG. 1 is a schematic diagram of a casting mold and manufacturing process for an automotive exhaust joint;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a schematic cross-sectional view of FIG. 1;
FIG. 4 is a schematic diagram of a casting mold for an automotive exhaust joint and the structure of a joint casting profiling module, a casting module and a wall scraping shaping module in the manufacturing process;
FIG. 5 is a schematic view of the structure of FIG. 4 from another perspective;
FIG. 6 is an enlarged schematic view of the area A in FIG. 3;
in the figure: 1. a sand box; 11. a plugging disc; 12. a fixing seat; 2. a joint casting profiling module; 201. casting forming cavity; 21. an outer riser; 22. an inner riser; 23. a chassis; 231. a positioning block; 3. a casting module; 301. a casting cavity; 31. an outer vertical shell; 311. a combination board; 312. a connecting plate; 32. an inner vertical shell; 33. plugging the tray; 4. a wall scraping shaping module; 41. a storage shell; 411. a positioning groove; 42. leveling the guide seat; 43. a side plate; 44. a vertical rod; 5. a material injection module; 51. injecting a material shell; 52. a material injection pipe; 521. and (5) fixing the buckle.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. The specific mechanical structure of the present invention will be clearly shown in the following detailed description of the structure with reference to fig. 1 to 6, and the structural contents mentioned in the following embodiments are all referred to in the specification and drawings.
Referring to fig. 1-6, in an embodiment of the present invention, a casting mold for an exhaust joint of an automobile includes a molding sand box 1, a joint casting profiling module 2 is fixedly connected inside the molding sand box 1, the joint casting profiling module 2 includes four outer risers 21, four inner risers 22 and a chassis 23, a casting molding cavity 201 is formed between the four annularly distributed outer risers 21 and the four annularly staggered inner risers 22 inside the outer risers 21, a casting module 3 is rotationally connected above the joint casting profiling module 2, the casting module 3 includes an outer vertical shell 31, an inner vertical shell 32 and a plugging tray 33, the inner vertical shell 32 is fixedly connected inside the outer vertical shell 31, the outer vertical shell 31 is rotationally connected to the top end of the outer riser 21, a casting cavity 301 is formed between the inner side wall of the outer vertical shell 31 and the outer side wall of the inner vertical shell 32, the plugging tray 33 is in snap connection inside the casting cavity 301, the casting molding cavity 201 is internally and slidingly connected with a scraping wall shaping module 4, the scraping wall shaping module 4 includes a storage shell 41 and a leveling guide seat 42, the leveling guide seat 42 is fixedly connected to the bottom of the casting module 41 and the inner vertical shell 52, the inner vertical shell 51 is fixedly connected to the inner vertical shell 51, the inner side of the four annular guide shells 51 is fixedly connected to the inner vertical shell 51, the inner vertical shell 51 is fixedly connected to the inner side of the storage shell 51, and the inner vertical shell 51 is fixedly connected to the inner side of the injection tube 52, and the inner vertical shell 51 is fixedly connected to the inner side of the storage shell 51, and the inner vertical shell 51 is fixedly connected to the inner side 51 is connected to the inner side 51.
The molding sand box 1 is used for holding and filling molding sand, the inside packing is filled the molding sand box 1 that fills molding sand and is used for carrying out the casting shaping that car exhaust joint, the inside of molding sand box 1 is provided with connects foundry goods profiling module 2, connect foundry goods profiling module 2 by four outer risers 21, four interior risers 22 and chassis 23 are constituteed, four outer risers 21 are annular equidistance fixed connection at the top of chassis 23, the bottom of chassis 23 and the bottom inner wall fixed connection of molding sand box 1 together, the bottom central point department of molding sand box 1 is provided with shutoff dish 11, the bottom fixedly connected with fixing base 12 of molding sand box 1, shutoff dish 11 fixed connection is on the top of fixing base 12, the connection combination of shutoff dish 11 and molding sand box 1 has been realized, make shutoff dish 11 and the bottom inner wall of molding sand box 1 can keep in a plane, make the molding sand box 1 can be smooth carry out the setting of filling, outer riser 21 is located the outside of shutoff dish 11, four chassis 23 are annular equidistance fixed connection at the top of shutoff dish 11, the bottom of chassis 23 has realized connecting the connection combination that connects foundry goods profiling module 2 and box 1 stable, four interior risers 22 are annular profile foam and four and the outer risers 21 of annular profile of distribution of riser 21 and four outer riser 21 and four annular profile cavity profile forming cavity 201 of exhaust profile cavities that the inside the cavity of casting 201 are formed.
The casting module 3 is arranged above the molding sand box 1, the casting module 3 is rotationally connected above the joint casting profiling module 2, the casting module 3 consists of an outer vertical shell 31, an inner vertical shell 32 and a plugging tray 33, the inner vertical shell 32 is positioned at the inner side of the outer vertical shell 31, the top of the outer vertical shell 31 is fixedly connected with a combination plate 311, the number of the combination plate 311 is four, the top of the inner vertical shell 32 is fixedly connected with the bottom of the combination plate 311, the stable connection combination between the inner vertical shell 32 and the outer vertical shell 31 is realized, the outer vertical shell 31 is rotationally connected at the top of the outer vertical plate 21, the bottom of the outer side wall of the outer vertical shell 31 is fixedly connected with two symmetrically distributed connecting plates 312, one connecting plate 312 is rotationally connected with the top of the outer vertical plate 21 corresponding to the lower part, the bottom of the other connecting plate 312 is in clamping connection with the top of the outer vertical plate 21 corresponding to the lower part, the casting material module 3 can smoothly rotate up and down and is connected with the positioning operation above the joint casting profiling module 2, the operation is simple, the casting material module 3 is conveniently opened and closed, a casting material cavity 301 is formed between the inner side wall of the outer vertical shell 31 and the outer side wall of the inner vertical shell 32, the plugging tray 33 is clamped and connected inside the casting material cavity 301, the plugging tray 33, the outer vertical shell 31 and the inner vertical shell 32 are conveniently connected and combined, the casting material module 3 is connected and positioned above the joint casting profiling module 2, the casting material cavity 301 is positioned above the casting forming cavity 201, the casting material cavity 301 is used for injecting molten iron into the casting forming cavity 201, and the operation of injecting molten iron into the casting forming cavity 201 is conveniently performed by operators.
The scraping shaping module 4 is slidingly connected in the casting molding cavity 201, the scraping shaping module 4 consists of a storage shell 41 and a leveling guide seat 42, the leveling guide seat 42 is fixedly connected at the bottom of the storage shell 41, the storage shell 41 is slidingly connected in the casting molding cavity 201, two symmetrically distributed side plates 43 are fixedly connected on the inner side wall of the storage shell 41, a vertical rod 44 is fixedly connected on the top of each side plate 43, two guide holes corresponding to the vertical rod 44 are formed in the inner vertical shell 32, the vertical rod 44 is slidingly connected in the corresponding guide holes on the inner vertical shell 32, the stable up-down movement of the storage shell 41 in the casting molding cavity 201 is realized, the effect of stably changing the position of the storage shell 41 in the casting molding cavity 201 is achieved, the top end of each vertical rod 44 extends to the upper side of the inner vertical shell 32, a baffle disc is connected on the top end of each vertical rod 44 in an inserting manner, the diameter of the baffle disc is larger than that of each guide hole, can play a role in limiting the moving distance of the storage shell 41, the baffle disc can be removed from the top end of the vertical rod 44 so as to ensure that the casting module 3 smoothly rotates above the joint casting profiling module 2, the outer side wall of the storage shell 41 is provided with the positioning slots 411, the bottom of the chassis 23 is fixedly connected with the positioning blocks 231, the number of the positioning blocks 231 is four, the four positioning blocks 231 are distributed in an annular equidistant manner, after the storage shell 41 moves downwards to a limiting position, the end part of the positioning block 231, which is close to the storage shell 41, is clamped in the positioning slots 411, the effect of positioning the moved storage shell 41 is achieved, the casting module 5 is arranged above the casting module 3 and fixedly connected with the inner vertical shell 32, the casting module 5 consists of the casting shell 51 and four casting pipes 52, the four casting pipes 52 are distributed on the inner side of the inner vertical shell 32 in an annular manner, the outer side of the casting pipes 52 is provided with fixing buckles 521, the injection pipe 52 is fixedly connected inside the fixed buckle 521, the outer wall of the fixed buckle 521 is fixedly connected with the inner side wall of the inner vertical shell 32, the injection shell 51 is positioned right above the inner vertical shell 32, the input end of the injection pipe 52 is fixedly connected with the bottom of the injection shell 51, the effects of stably combining the injection module 5 and the casting module 3 are achieved, the storage shell 41 is positioned below the plugging tray 33 and stops moving, the output end of the injection pipe 52 is positioned above the storage shell 41, through injecting molten iron into the injection shell 51, the molten iron enters the four injection pipes 52 from the through holes of the communication injection pipe 52 formed at the bottom of the injection shell 51, the molten iron is discharged into the storage shell 41 along the injection pipe 52, the effects of effectively guiding the molten iron to be injected into the storage shell 41 and filling the internal space of the storage shell 41 are achieved, the casting molding cavity 201 is used for placing profiling foam when casting operation is performed, the casting module 3 above the rotary joint casting profiling module 2 is used for positioning and connecting the casting module 3 above the joint casting profiling module 2 and profiling foam, achieving the effects of setting profiling foam and injecting molten iron at fixed points in a designated area below a molten iron injection structure above the molding sand box 1, the storage shell 41 is positioned between the plugging tray 33 and the profiling foam, molten iron can be injected into the storage shell 41 through the storage shell 51 and the four injection pipes 52, the storage shell 41 increases in weight and vertically moves downwards in the casting molding cavity 201, the profiling foam is dissolved, the side edge of the storage shell 41 keeps a state of being contacted with surface sand on the side edge of the casting molding cavity 201, moves downwards in the casting molding cavity 201, achieves the effect of heating and shaping the surface sand on the side edge of the casting molding cavity 201, the casting molding cavity 201 can be exposed by rotating the casting module 3 upwards when taking a part, let operating personnel follow the open end in top of foundry goods molding cavity 201 and carry out the taking out of foundry goods, can reduce and cause great damage to foundry goods molding cavity 201 when getting the piece, be convenient for carry out the fixed point setting of profile modeling foam and foundry goods molding cavity 201 in the molten iron injection structure below assigned area of molding sand box 1 top to adopt sand casting's mode to carry out the continuous casting of car exhaust connector.
The pouring module 3 is used for pouring part of molten iron into the casting molding cavity 201, the molten iron is poured into the casting cavity 301 from the top open end of the casting cavity 301, the sealing tray 33 can support the molten iron, the sealing tray 33 is stressed to support gradually more molten iron to descend in the casting molding cavity 201, so that the molten iron gradually fills the internal space of the casting molding cavity 201 from different areas, after the molten iron is split, the internal space of the casting molding cavity 201 subjected to preheating shaping is gradually filled from the different areas of the casting molding cavity 201 through the support of the sealing tray 33, the effect of reducing the part of molding sand at the cavity wall position of the casting molding cavity 201 from being flushed by the molten iron can be achieved, the effect of reducing the mixture of part of molding sand and dissolved profiling foam into the molten iron and other areas mixed into the cavity wall of the casting molding cavity 201 can be achieved, the situations that sand holes and part of the casting are shrinkage cavity and the outer ring are abnormal can be reduced, the sealing tray 33 is clamped and connected with the storage shell 41, the downwards moved sealing tray 33 can be clamped at the top of the storage shell 41, and the function of the storage shell 41 is achieved.
The working principle of the invention is as follows: the molding sand is filled into the molding sand box 1, the surface sand wraps the outer vertical plates 21 and the inner vertical plates 22, the filling molding sand fills the residual space inside the molding sand box 1, the casting molding module 3 is rotated anticlockwise upwards to expose the casting molding cavity 201, profiling foam is put into the casting molding cavity 201 from the top open end of the casting molding cavity 201, the casting molding module 3 is rotated clockwise downwards, the connecting plate 312 on the free side is clamped to the top end of the corresponding outer vertical plate 21 below, the casting molding module 3 is positioned above the molding sand box 1, the storage shell 41 is positioned above the profiling foam, molten iron is injected into the inside of the injection shell 51, the molten iron is guided to flow into the inside of the storage shell 41 by the four injection pipes 52, the weight of the storage shell 41 is increased and moves vertically downwards inside the casting molding cavity 201, the profiling foam is dissolved, the side of the storage shell 41 keeps in contact with the facing sand on the side of the casting molding cavity 201 and moves downwards in the casting molding cavity 201, the facing sand on the side of the casting molding cavity 201 is heated and shaped, the storage shell 41 is positioned on the inner side of the chassis 23, casting molten iron is injected into the casting cavity 301 from the top open end of the casting cavity 301, the plugging tray 33 holds the casting molten iron, gradually increasing molten iron presses the plugging tray 33 to descend in the casting molding cavity 201, the casting molten iron gradually fills the inner space of the casting molding cavity 201 from different areas, cooling is completed, casting of an automobile exhaust connector is completed, the casting molding cavity 201 is exposed by rotating the casting module 3 upwards, and an operator takes out the casting from the top open end of the casting molding cavity 201.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a casting mould for automobile exhaust joint, includes molding sand box (1), its characterized in that, inside fixedly connected with of molding sand box (1) connects foundry goods profiling module (2), connect foundry goods profiling module (2) including four outer risers (21), four interior risers (22) and chassis (23), four annular distributed outer risers (21) and four annular crisscross distribution are in form foundry goods molding cavity (201) between interior riser (22) of outer riser (21) inboard, connect foundry goods profiling module (2) top rotation to be connected with pouring module (3), pouring module (3) include outer riser (31), interior riser (32) and shutoff tray (33), interior riser (32) fixed connection is in outer riser (31) inboard, outer riser (31) rotate and connect in outer riser (21) top, form pouring cavity (301) between outer riser (31) inside wall and the interior riser (32) outside wall, block tray (33) are in pouring cavity (301) inside;
the casting forming die cavity (201) is internally connected with a scraping shaping module (4) in a sliding mode, the scraping shaping module (4) comprises a storage shell (41) and a leveling guide seat (42), the leveling guide seat (42) is fixedly connected to the bottom of the storage shell (41), the storage shell (41) is in sliding connection inside the casting forming die cavity (201), a blocking tray (33) is connected with the storage shell (41) in a clamping mode, a material injection module (5) is fixedly connected to the upper portion of the material injection module (3), the material injection module (5) comprises a material injection shell (51) and four material injection pipes (52), the four material injection pipes (52) are fixedly connected to the inner side of the inner vertical shell (32), the material injection shell (51) is located above the inner vertical shell (32), and the input end of each material injection pipe (52) is fixedly connected to the bottom of the material injection shell (51).
2. Casting mould for an exhaust joint of an automobile according to claim 1, characterized in that a plugging disc (11) is arranged at the central position of the bottom of the molding sand box (1), a fixed seat (12) is fixedly connected to the bottom of the molding sand box (1), and the plugging disc (11) is fixedly connected to the top end of the fixed seat (12).
3. The casting die for the automobile exhaust connector according to claim 2, wherein four outer vertical plates (21) are fixedly connected to the top of the base plate (23) at equal intervals in a ring shape, the base plate (23) is fixedly connected to the inner wall of the bottom of the molding sand box (1), the outer vertical plates (21) are positioned on the outer side of the plugging disc (11), and four base plates (23) are fixedly connected to the top of the plugging disc (11) at equal intervals in a ring shape.
4. The casting mold for the automobile exhaust connector according to claim 1, wherein a combination plate (311) is fixedly connected to the top of the outer vertical shell (31), the top of the inner vertical shell (32) is fixedly connected to the bottom of the combination plate (311), two symmetrically distributed connecting plates (312) are fixedly connected to the bottom of the outer side wall of the outer vertical shell (31), one connecting plate (312) is rotationally connected to the top end of the outer vertical plate (21) corresponding to the lower part, and the bottom of the other connecting plate (312) is in clamping connection to the top end of the outer vertical plate (21) corresponding to the lower part.
5. The casting die for the automobile exhaust connector according to claim 1, wherein two symmetrically distributed side plates (43) are fixedly connected to the inner side wall of the storage shell (41), vertical rods (44) are fixedly connected to the tops of the side plates (43), the vertical rods (44) are slidably connected to the inside of the inner vertical shell (32), and the top ends of the vertical rods (44) extend to the upper portion of the inner vertical shell (32).
6. The casting die for the automobile exhaust connector according to claim 1, wherein a positioning groove (411) is formed in the outer side wall of the storage shell (41), a positioning block (231) is fixedly connected to the bottom of the chassis (23), and the end portion, close to the storage shell (41), of the positioning block (231) is clamped inside the positioning groove (411).
7. The casting mold for the automobile exhaust connector according to claim 1, wherein a fixing buckle (521) is arranged on the outer side of the injection pipe (52), the injection pipe (52) is fixedly connected inside the fixing buckle (521), and the outer wall of the fixing buckle (521) is fixedly connected with the inner side wall of the inner vertical shell (32).
8. A process for manufacturing a casting mold for an exhaust joint of an automobile according to any one of claims 1 to 7, which comprises the steps of,
s1, filling molding sand into the molding sand box (1), wrapping the outer vertical plates (21) and the inner vertical plates (22) by surface sand, filling the molding sand into the residual space in the molding sand box (1), rotating the casting module (3) anticlockwise upwards, placing profiling foam into the casting molding cavity (201), rotating the casting module (3) clockwise downwards, and clamping the connecting plates (312) at the free side to the top ends of the outer vertical plates (21) corresponding to the lower parts, so that the casting module (3) is arranged above the molding sand box (1);
s2, the storage shell (41) is positioned above profiling foam, molten iron is injected into the storage shell (51), the molten iron is guided to flow into the storage shell (41) by four injection pipes (52), the weight of the storage shell (41) is increased and moves vertically downwards in the casting forming cavity (201), the profiling foam is dissolved, and the side edge of the storage shell (41) contacts with surface sand at the side edge of the casting forming cavity (201) to realize the shaping of the surface sand at the side edge of the casting forming cavity (201);
s3, casting molten iron is injected into the pouring cavity (301), the plugging tray (33) supports the casting molten iron to descend in the casting molding cavity (201), the casting molten iron fills the internal space of the casting molding cavity (201), and the casting of the automobile exhaust joint is completed through cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310366878.6A CN116079007B (en) | 2023-04-07 | 2023-04-07 | Casting die for automobile exhaust connector and manufacturing process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310366878.6A CN116079007B (en) | 2023-04-07 | 2023-04-07 | Casting die for automobile exhaust connector and manufacturing process |
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| CN116079007A true CN116079007A (en) | 2023-05-09 |
| CN116079007B CN116079007B (en) | 2023-06-09 |
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| CN113084083A (en) * | 2021-05-08 | 2021-07-09 | 洛阳刘氏模具有限公司 | Integrated lost foam mold |
| CN115283645A (en) * | 2022-06-20 | 2022-11-04 | 中国航发哈尔滨东安发动机有限公司 | Preparation and use method of magnesium alloy low-pressure investment casting ceramic shell |
| CN115846630A (en) * | 2023-02-20 | 2023-03-28 | 蓬莱三和铸造有限公司 | Nodular cast iron casting processingequipment |
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| CN116079007B (en) | 2023-06-09 |
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